Tom XAP installer allows you to install .xap with double click to file or simply right click and click on install xap.
Download exe file and save it to your PC. Later run it, and it will automatically add registry path of application and add menu icon to .XAP files.
Close it and now double click any .xap format files, the Tom XAP installer will automatically open and give details like Application Name, Version, Author, Size, Description of XAP.
Select where you want to install xap – device or emulator. Press Install and wait for it to finish.
Tom XAP installer Requires .NET 4.0 Framework and Windows Phone 7 SDK.
If you install xap to device, make sure your device was unlocked with ChevronWP7 Unlocker.
For this make sure your device is connected with PC and Zune launched. Also make sure your device is not in sleep mode. If you move Tom XAP installer.exe to other location in PC , you should run it again one time for registry again location of application.
Update support multiple xaps install, and make right admin access